Solenoid Valves In Valve Body, Checking
Solenoid valves in valve body, checking
Recommended special tools and equipment
- V.A.G 1526 multimeter or V.A.G 1715 multimeter
- V.A.G 1594 connector test kit
- Wiring diagram
Requirements
- Respective fuses must be OK:
- Selector lever must be in -P- position.
- All electrical consumers such as, lights and rear window defroster must be switched off.
- Parking brake must be engaged.
- Ground (GND) connections to transmission must be OK.
- Ignition switched off.
Vehicles with 01M transmission
Test sequence
- Disconnect 12-pin harness connector at transmission.
- Observe safety precautions.
- Check harness connector for contact corrosion and ingress of water.
If harness connector is not OK:
- Repair malfunction.
- Erase DTC memory of Transmission Control Module (TCM), Diagnostic mode 4: Reset/erase diagnostic data.
- Generate readiness code. Monitors, Trips, Drive Cycles and Readiness Codes
- If harness connector is OK:
- Check resistance of solenoid valves.
Checking resistance of solenoid valves
- Re-connect 12-pin connector.
- Connect test box to control module wiring harness, connect test box for wiring test.
- Measure resistance of solenoid valves at test box between sockets:
Component Sockets Specified value
Solenoid valve 1 -N88- 55 + 67 55.0 to 65.0 ohms
Solenoid valve 2 -N89- 54 + 67 55.0 to 65.0 ohms
Solenoid valve 3 -N90- 9 + 67 55.0 to 65.0 ohms
Solenoid valve 4 -N91- 47 + 67 4.5 to 6.5 ohms
Solenoid valve 5 -N92- 56 + 67 55.0 to 65.0 ohms
Solenoid valve 6 -N93- 22 + 58 4.5 to 6.5 ohms
Solenoid valve 7 -N94- 10 + 67 55.0 to 65.0 ohms
Note: Resistance value is valid at approx. 20° C. At higher temperatures, resistance value increases.
If one of the specified values is not obtained:
- Check wires to Transmission Control Module (TCM) according to wiring diagram.
Checking wires to Transmission Control Module (TCM)
- Disconnect 12-pin harness connector at transmission.
- Check wires between test box and 12-pin connector to Transmission Control Module (TCM) for open circuit according to wiring diagram.
- Wire resistance: max. 1.5 ohms
Component Connector Test box
Solenoid valve 1 -N88- Terminal 1 Socket 67
Terminal 3 Socket 55
Solenoid valve 2 -N89- Terminal 1 Socket 67
Terminal 4 Socket 54
Solenoid valve 3 -N90- Terminal 1 Socket 67
Terminal 5 Socket 9
Solenoid valve 4 -N91- Terminal 1 Socket 67
Terminal 6 Socket 47
Solenoid valve 5 -N92- Terminal 1 Socket 67
Terminal 7 Socket 56
Solenoid valve 6 -N93- Terminal 2 Socket 22
Terminal 8 Socket 58
Solenoid valve 7 -N94- Terminal 1 Socket 67
Terminal 10 Socket 10
- Check wires for short circuit to each other.
- Specified value: infinite ohms
If no malfunctions are found in wires:
- Replace circuit board or valve body:
- Erase DTC memory of Transmission Control Module (TCM), Diagnostic mode 4: Reset/erase diagnostic data.
- Generate readiness code. Monitors, Trips, Drive Cycles and Readiness Codes
Vehicles with 09A transmission
Test sequence
- Disconnect 20-pin harness connector -2-.
- Observe safety precautions.
- Check harness connector for contact corrosion and ingress of water.
If harness connector is not OK:
- Repair the malfunction.
- Erase DTC memory of Transmission Control Module (TCM), Diagnostic mode 4: Reset/erase diagnostic data.
- Generate readiness code. Monitors, Trips, Drive Cycles and Readiness Codes
If harness connector is OK:
- Check wire for Ground (GND) refeed of valve body according to wiring diagram.
Checking Ground (GND) refeed of valve body
- Connect test box to control module wiring harness, connect test box for wiring test.
- Check wire between test box sockets 64 + 68 for short circuit to B+ according to wiring diagram.
- Specified value: infinite ohms
- Check wires between test box and 20-pin connector to Transmission Control Module (TCM) for open circuit according to wiring diagram.Terminal 18 + socket 64
- Wire resistance: max. 1.5 ohms
If specified values are obtained:
- Re-connect 20-pin connector.
- Check wires between test box sockets 1 + 64 and 24 + 64 for open circuit according to wiring diagram.
- Wire resistance: max. 1.5 ohms
If specified value is not obtained:
- Check internal wires in valve body:
If specified value is obtained:
- Check resistances of solenoid valves.
Checking resistance of solenoid valves
- Measure resistance of solenoid valves at test box between socket of corresponding solenoid valve to socket 1 according to wiring diagram:
Component Specified value ohms
Solenoid valve 1 -N88- 9.0 to 24.0
Solenoid valve 2 -N89- 9.0 to 24.0
Solenoid valve 3 -N90- 9.0 to 24.0
Solenoid Valve 4 -N91- 9.0 to 24.0
Solenoid valve 5 -N92- 9.0 to 24.0
Solenoid Valve 6 -N93- 1.0 to 5.0
Solenoid Valve 8 -N281- 9.0 to 24.0
Solenoid Valve 9 -N282- 9.0 to 24.0
Solenoid Valve 10 -N283- 1.0 to 5.0
Note: Resistance value is valid at approx. 20° C. At higher temperatures, resistance value increases.
If one of the specified values is not obtained:
- Check wires to Transmission Control Module (TCM) according to wiring diagram.
Checking wires to Transmission Control Module (TCM)
- Disconnect 20-pin harness connector -2-.
- Check for open circuits in wires between test box and 20-pin harness connector to Transmission Control Module (TCM) according to wiring diagram.
Terminal 9 + socket 48
Terminal 10 + socket 49
Terminal 11 + socket 50
Terminal 12 + socket 26
Terminal 13 + socket 51
Terminal 14 + socket 46
Terminal 15 + socket 66
Terminal 16 + socket 65
Terminal 17 + socket 25
Wire resistance: max. 1.5 ohms
Check wires for short circuit to each other.
Specified value: infinite ohms
If no malfunctions are found in wires:
- Replace faulty solenoid valve
- Erase DTC memory of Transmission Control Module (TCM), Diagnostic mode 4: Reset/erase diagnostic data.
- Generate readiness code. Monitors, Trips, Drive Cycles and Readiness Codes